1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_IA64_PAL_H
   3#define _ASM_IA64_PAL_H
   4
   5/*
   6 * Processor Abstraction Layer definitions.
   7 *
   8 * This is based on Intel IA-64 Architecture Software Developer's Manual rev 1.0
   9 * chapter 11 IA-64 Processor Abstraction Layer
  10 *
  11 * Copyright (C) 1998-2001 Hewlett-Packard Co
  12 *	David Mosberger-Tang <davidm@hpl.hp.com>
  13 *	Stephane Eranian <eranian@hpl.hp.com>
  14 * Copyright (C) 1999 VA Linux Systems
  15 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
  16 * Copyright (C) 1999 Srinivasa Prasad Thirumalachar <sprasad@sprasad.engr.sgi.com>
  17 * Copyright (C) 2008 Silicon Graphics, Inc. (SGI)
  18 *
  19 * 99/10/01	davidm	Make sure we pass zero for reserved parameters.
  20 * 00/03/07	davidm	Updated pal_cache_flush() to be in sync with PAL v2.6.
  21 * 00/03/23     cfleck  Modified processor min-state save area to match updated PAL & SAL info
  22 * 00/05/24     eranian Updated to latest PAL spec, fix structures bugs, added
  23 * 00/05/25	eranian Support for stack calls, and static physical calls
  24 * 00/06/18	eranian Support for stacked physical calls
  25 * 06/10/26	rja	Support for Intel Itanium Architecture Software Developer's
  26 *			Manual Rev 2.2 (Jan 2006)
  27 */
  28
  29/*
  30 * Note that some of these calls use a static-register only calling
  31 * convention which has nothing to do with the regular calling
  32 * convention.
  33 */
  34#define PAL_CACHE_FLUSH		1	/* flush i/d cache */
  35#define PAL_CACHE_INFO		2	/* get detailed i/d cache info */
  36#define PAL_CACHE_INIT		3	/* initialize i/d cache */
  37#define PAL_CACHE_SUMMARY	4	/* get summary of cache hierarchy */
  38#define PAL_MEM_ATTRIB		5	/* list supported memory attributes */
  39#define PAL_PTCE_INFO		6	/* purge TLB info */
  40#define PAL_VM_INFO		7	/* return supported virtual memory features */
  41#define PAL_VM_SUMMARY		8	/* return summary on supported vm features */
  42#define PAL_BUS_GET_FEATURES	9	/* return processor bus interface features settings */
  43#define PAL_BUS_SET_FEATURES	10	/* set processor bus features */
  44#define PAL_DEBUG_INFO		11	/* get number of debug registers */
  45#define PAL_FIXED_ADDR		12	/* get fixed component of processors's directed address */
  46#define PAL_FREQ_BASE		13	/* base frequency of the platform */
  47#define PAL_FREQ_RATIOS		14	/* ratio of processor, bus and ITC frequency */
  48#define PAL_PERF_MON_INFO	15	/* return performance monitor info */
  49#define PAL_PLATFORM_ADDR	16	/* set processor interrupt block and IO port space addr */
  50#define PAL_PROC_GET_FEATURES	17	/* get configurable processor features & settings */
  51#define PAL_PROC_SET_FEATURES	18	/* enable/disable configurable processor features */
  52#define PAL_RSE_INFO		19	/* return rse information */
  53#define PAL_VERSION		20	/* return version of PAL code */
  54#define PAL_MC_CLEAR_LOG	21	/* clear all processor log info */
  55#define PAL_MC_DRAIN		22	/* drain operations which could result in an MCA */
  56#define PAL_MC_EXPECTED		23	/* set/reset expected MCA indicator */
  57#define PAL_MC_DYNAMIC_STATE	24	/* get processor dynamic state */
  58#define PAL_MC_ERROR_INFO	25	/* get processor MCA info and static state */
  59#define PAL_MC_RESUME		26	/* Return to interrupted process */
  60#define PAL_MC_REGISTER_MEM	27	/* Register memory for PAL to use during MCAs and inits */
  61#define PAL_HALT		28	/* enter the low power HALT state */
  62#define PAL_HALT_LIGHT		29	/* enter the low power light halt state*/
  63#define PAL_COPY_INFO		30	/* returns info needed to relocate PAL */
  64#define PAL_CACHE_LINE_INIT	31	/* init tags & data of cache line */
  65#define PAL_PMI_ENTRYPOINT	32	/* register PMI memory entry points with the processor */
  66#define PAL_ENTER_IA_32_ENV	33	/* enter IA-32 system environment */
  67#define PAL_VM_PAGE_SIZE	34	/* return vm TC and page walker page sizes */
  68
  69#define PAL_MEM_FOR_TEST	37	/* get amount of memory needed for late processor test */
  70#define PAL_CACHE_PROT_INFO	38	/* get i/d cache protection info */
  71#define PAL_REGISTER_INFO	39	/* return AR and CR register information*/
  72#define PAL_SHUTDOWN		40	/* enter processor shutdown state */
  73#define PAL_PREFETCH_VISIBILITY	41	/* Make Processor Prefetches Visible */
  74#define PAL_LOGICAL_TO_PHYSICAL 42	/* returns information on logical to physical processor mapping */
  75#define PAL_CACHE_SHARED_INFO	43	/* returns information on caches shared by logical processor */
  76#define PAL_GET_HW_POLICY	48	/* Get current hardware resource sharing policy */
  77#define PAL_SET_HW_POLICY	49	/* Set current hardware resource sharing policy */
  78#define PAL_VP_INFO		50	/* Information about virtual processor features */
  79#define PAL_MC_HW_TRACKING	51	/* Hardware tracking status */
  80
  81#define PAL_COPY_PAL		256	/* relocate PAL procedures and PAL PMI */
  82#define PAL_HALT_INFO		257	/* return the low power capabilities of processor */
  83#define PAL_TEST_PROC		258	/* perform late processor self-test */
  84#define PAL_CACHE_READ		259	/* read tag & data of cacheline for diagnostic testing */
  85#define PAL_CACHE_WRITE		260	/* write tag & data of cacheline for diagnostic testing */
  86#define PAL_VM_TR_READ		261	/* read contents of translation register */
  87#define PAL_GET_PSTATE		262	/* get the current P-state */
  88#define PAL_SET_PSTATE		263	/* set the P-state */
  89#define PAL_BRAND_INFO		274	/* Processor branding information */
  90
  91#define PAL_GET_PSTATE_TYPE_LASTSET	0
  92#define PAL_GET_PSTATE_TYPE_AVGANDRESET	1
  93#define PAL_GET_PSTATE_TYPE_AVGNORESET	2
  94#define PAL_GET_PSTATE_TYPE_INSTANT	3
  95
  96#define PAL_MC_ERROR_INJECT	276	/* Injects processor error or returns injection capabilities */
  97
  98#ifndef __ASSEMBLY__
  99
 100#include <linux/types.h>
 101#include <asm/fpu.h>
 
 102
 103/*
 104 * Data types needed to pass information into PAL procedures and
 105 * interpret information returned by them.
 106 */
 107
 108/* Return status from the PAL procedure */
 109typedef s64				pal_status_t;
 110
 111#define PAL_STATUS_SUCCESS		0	/* No error */
 112#define PAL_STATUS_UNIMPLEMENTED	(-1)	/* Unimplemented procedure */
 113#define PAL_STATUS_EINVAL		(-2)	/* Invalid argument */
 114#define PAL_STATUS_ERROR		(-3)	/* Error */
 115#define PAL_STATUS_CACHE_INIT_FAIL	(-4)	/* Could not initialize the
 116						 * specified level and type of
 117						 * cache without sideeffects
 118						 * and "restrict" was 1
 119						 */
 120#define PAL_STATUS_REQUIRES_MEMORY	(-9)	/* Call requires PAL memory buffer */
 121
 122/* Processor cache level in the hierarchy */
 123typedef u64				pal_cache_level_t;
 124#define PAL_CACHE_LEVEL_L0		0	/* L0 */
 125#define PAL_CACHE_LEVEL_L1		1	/* L1 */
 126#define PAL_CACHE_LEVEL_L2		2	/* L2 */
 127
 128
 129/* Processor cache type at a particular level in the hierarchy */
 130
 131typedef u64				pal_cache_type_t;
 132#define PAL_CACHE_TYPE_INSTRUCTION	1	/* Instruction cache */
 133#define PAL_CACHE_TYPE_DATA		2	/* Data or unified cache */
 134#define PAL_CACHE_TYPE_INSTRUCTION_DATA	3	/* Both Data & Instruction */
 135
 136
 137#define PAL_CACHE_FLUSH_INVALIDATE	1	/* Invalidate clean lines */
 138#define PAL_CACHE_FLUSH_CHK_INTRS	2	/* check for interrupts/mc while flushing */
 139
 140/* Processor cache line size in bytes  */
 141typedef int				pal_cache_line_size_t;
 142
 143/* Processor cache line state */
 144typedef u64				pal_cache_line_state_t;
 145#define PAL_CACHE_LINE_STATE_INVALID	0	/* Invalid */
 146#define PAL_CACHE_LINE_STATE_SHARED	1	/* Shared */
 147#define PAL_CACHE_LINE_STATE_EXCLUSIVE	2	/* Exclusive */
 148#define PAL_CACHE_LINE_STATE_MODIFIED	3	/* Modified */
 149
 150typedef struct pal_freq_ratio {
 151	u32 den, num;		/* numerator & denominator */
 152} itc_ratio, proc_ratio;
 153
 154typedef	union  pal_cache_config_info_1_s {
 155	struct {
 156		u64		u		: 1,	/* 0 Unified cache ? */
 157				at		: 2,	/* 2-1 Cache mem attr*/
 158				reserved	: 5,	/* 7-3 Reserved */
 159				associativity	: 8,	/* 16-8 Associativity*/
 160				line_size	: 8,	/* 23-17 Line size */
 161				stride		: 8,	/* 31-24 Stride */
 162				store_latency	: 8,	/*39-32 Store latency*/
 163				load_latency	: 8,	/* 47-40 Load latency*/
 164				store_hints	: 8,	/* 55-48 Store hints*/
 165				load_hints	: 8;	/* 63-56 Load hints */
 166	} pcci1_bits;
 167	u64			pcci1_data;
 168} pal_cache_config_info_1_t;
 169
 170typedef	union  pal_cache_config_info_2_s {
 171	struct {
 172		u32		cache_size;		/*cache size in bytes*/
 173
 174
 175		u32		alias_boundary	: 8,	/* 39-32 aliased addr
 176							 * separation for max
 177							 * performance.
 178							 */
 179				tag_ls_bit	: 8,	/* 47-40 LSb of addr*/
 180				tag_ms_bit	: 8,	/* 55-48 MSb of addr*/
 181				reserved	: 8;	/* 63-56 Reserved */
 182	} pcci2_bits;
 183	u64			pcci2_data;
 184} pal_cache_config_info_2_t;
 185
 186
 187typedef struct pal_cache_config_info_s {
 188	pal_status_t			pcci_status;
 189	pal_cache_config_info_1_t	pcci_info_1;
 190	pal_cache_config_info_2_t	pcci_info_2;
 191	u64				pcci_reserved;
 192} pal_cache_config_info_t;
 193
 194#define pcci_ld_hints		pcci_info_1.pcci1_bits.load_hints
 195#define pcci_st_hints		pcci_info_1.pcci1_bits.store_hints
 196#define pcci_ld_latency		pcci_info_1.pcci1_bits.load_latency
 197#define pcci_st_latency		pcci_info_1.pcci1_bits.store_latency
 198#define pcci_stride		pcci_info_1.pcci1_bits.stride
 199#define pcci_line_size		pcci_info_1.pcci1_bits.line_size
 200#define pcci_assoc		pcci_info_1.pcci1_bits.associativity
 201#define pcci_cache_attr		pcci_info_1.pcci1_bits.at
 202#define pcci_unified		pcci_info_1.pcci1_bits.u
 203#define pcci_tag_msb		pcci_info_2.pcci2_bits.tag_ms_bit
 204#define pcci_tag_lsb		pcci_info_2.pcci2_bits.tag_ls_bit
 205#define pcci_alias_boundary	pcci_info_2.pcci2_bits.alias_boundary
 206#define pcci_cache_size		pcci_info_2.pcci2_bits.cache_size
 207
 208
 209
 210/* Possible values for cache attributes */
 211
 212#define PAL_CACHE_ATTR_WT		0	/* Write through cache */
 213#define PAL_CACHE_ATTR_WB		1	/* Write back cache */
 214#define PAL_CACHE_ATTR_WT_OR_WB		2	/* Either write thru or write
 215						 * back depending on TLB
 216						 * memory attributes
 217						 */
 218
 219
 220/* Possible values for cache hints */
 221
 222#define PAL_CACHE_HINT_TEMP_1		0	/* Temporal level 1 */
 223#define PAL_CACHE_HINT_NTEMP_1		1	/* Non-temporal level 1 */
 224#define PAL_CACHE_HINT_NTEMP_ALL	3	/* Non-temporal all levels */
 225
 226/* Processor cache protection  information */
 227typedef union pal_cache_protection_element_u {
 228	u32			pcpi_data;
 229	struct {
 230		u32		data_bits	: 8, /* # data bits covered by
 231						      * each unit of protection
 232						      */
 233
 234				tagprot_lsb	: 6, /* Least -do- */
 235				tagprot_msb	: 6, /* Most Sig. tag address
 236						      * bit that this
 237						      * protection covers.
 238						      */
 239				prot_bits	: 6, /* # of protection bits */
 240				method		: 4, /* Protection method */
 241				t_d		: 2; /* Indicates which part
 242						      * of the cache this
 243						      * protection encoding
 244						      * applies.
 245						      */
 246	} pcp_info;
 247} pal_cache_protection_element_t;
 248
 249#define pcpi_cache_prot_part	pcp_info.t_d
 250#define pcpi_prot_method	pcp_info.method
 251#define pcpi_prot_bits		pcp_info.prot_bits
 252#define pcpi_tagprot_msb	pcp_info.tagprot_msb
 253#define pcpi_tagprot_lsb	pcp_info.tagprot_lsb
 254#define pcpi_data_bits		pcp_info.data_bits
 255
 256/* Processor cache part encodings */
 257#define PAL_CACHE_PROT_PART_DATA	0	/* Data protection  */
 258#define PAL_CACHE_PROT_PART_TAG		1	/* Tag  protection */
 259#define PAL_CACHE_PROT_PART_TAG_DATA	2	/* Tag+data protection (tag is
 260						 * more significant )
 261						 */
 262#define PAL_CACHE_PROT_PART_DATA_TAG	3	/* Data+tag protection (data is
 263						 * more significant )
 264						 */
 265#define PAL_CACHE_PROT_PART_MAX		6
 266
 267
 268typedef struct pal_cache_protection_info_s {
 269	pal_status_t			pcpi_status;
 270	pal_cache_protection_element_t	pcp_info[PAL_CACHE_PROT_PART_MAX];
 271} pal_cache_protection_info_t;
 272
 273
 274/* Processor cache protection method encodings */
 275#define PAL_CACHE_PROT_METHOD_NONE		0	/* No protection */
 276#define PAL_CACHE_PROT_METHOD_ODD_PARITY	1	/* Odd parity */
 277#define PAL_CACHE_PROT_METHOD_EVEN_PARITY	2	/* Even parity */
 278#define PAL_CACHE_PROT_METHOD_ECC		3	/* ECC protection */
 279
 280
 281/* Processor cache line identification in the hierarchy */
 282typedef union pal_cache_line_id_u {
 283	u64			pclid_data;
 284	struct {
 285		u64		cache_type	: 8,	/* 7-0 cache type */
 286				level		: 8,	/* 15-8 level of the
 287							 * cache in the
 288							 * hierarchy.
 289							 */
 290				way		: 8,	/* 23-16 way in the set
 291							 */
 292				part		: 8,	/* 31-24 part of the
 293							 * cache
 294							 */
 295				reserved	: 32;	/* 63-32 is reserved*/
 296	} pclid_info_read;
 297	struct {
 298		u64		cache_type	: 8,	/* 7-0 cache type */
 299				level		: 8,	/* 15-8 level of the
 300							 * cache in the
 301							 * hierarchy.
 302							 */
 303				way		: 8,	/* 23-16 way in the set
 304							 */
 305				part		: 8,	/* 31-24 part of the
 306							 * cache
 307							 */
 308				mesi		: 8,	/* 39-32 cache line
 309							 * state
 310							 */
 311				start		: 8,	/* 47-40 lsb of data to
 312							 * invert
 313							 */
 314				length		: 8,	/* 55-48 #bits to
 315							 * invert
 316							 */
 317				trigger		: 8;	/* 63-56 Trigger error
 318							 * by doing a load
 319							 * after the write
 320							 */
 321
 322	} pclid_info_write;
 323} pal_cache_line_id_u_t;
 324
 325#define pclid_read_part		pclid_info_read.part
 326#define pclid_read_way		pclid_info_read.way
 327#define pclid_read_level	pclid_info_read.level
 328#define pclid_read_cache_type	pclid_info_read.cache_type
 329
 330#define pclid_write_trigger	pclid_info_write.trigger
 331#define pclid_write_length	pclid_info_write.length
 332#define pclid_write_start	pclid_info_write.start
 333#define pclid_write_mesi	pclid_info_write.mesi
 334#define pclid_write_part	pclid_info_write.part
 335#define pclid_write_way		pclid_info_write.way
 336#define pclid_write_level	pclid_info_write.level
 337#define pclid_write_cache_type	pclid_info_write.cache_type
 338
 339/* Processor cache line part encodings */
 340#define PAL_CACHE_LINE_ID_PART_DATA		0	/* Data */
 341#define PAL_CACHE_LINE_ID_PART_TAG		1	/* Tag */
 342#define PAL_CACHE_LINE_ID_PART_DATA_PROT	2	/* Data protection */
 343#define PAL_CACHE_LINE_ID_PART_TAG_PROT		3	/* Tag protection */
 344#define PAL_CACHE_LINE_ID_PART_DATA_TAG_PROT	4	/* Data+tag
 345							 * protection
 346							 */
 347typedef struct pal_cache_line_info_s {
 348	pal_status_t		pcli_status;		/* Return status of the read cache line
 349							 * info call.
 350							 */
 351	u64			pcli_data;		/* 64-bit data, tag, protection bits .. */
 352	u64			pcli_data_len;		/* data length in bits */
 353	pal_cache_line_state_t	pcli_cache_line_state;	/* mesi state */
 354
 355} pal_cache_line_info_t;
 356
 357
 358/* Machine Check related crap */
 359
 360/* Pending event status bits  */
 361typedef u64					pal_mc_pending_events_t;
 362
 363#define PAL_MC_PENDING_MCA			(1 << 0)
 364#define PAL_MC_PENDING_INIT			(1 << 1)
 365
 366/* Error information type */
 367typedef u64					pal_mc_info_index_t;
 368
 369#define PAL_MC_INFO_PROCESSOR			0	/* Processor */
 370#define PAL_MC_INFO_CACHE_CHECK			1	/* Cache check */
 371#define PAL_MC_INFO_TLB_CHECK			2	/* Tlb check */
 372#define PAL_MC_INFO_BUS_CHECK			3	/* Bus check */
 373#define PAL_MC_INFO_REQ_ADDR			4	/* Requestor address */
 374#define PAL_MC_INFO_RESP_ADDR			5	/* Responder address */
 375#define PAL_MC_INFO_TARGET_ADDR			6	/* Target address */
 376#define PAL_MC_INFO_IMPL_DEP			7	/* Implementation
 377							 * dependent
 378							 */
 379
 380#define PAL_TLB_CHECK_OP_PURGE			8
 381
 382typedef struct pal_process_state_info_s {
 383	u64		reserved1	: 2,
 384			rz		: 1,	/* PAL_CHECK processor
 385						 * rendezvous
 386						 * successful.
 387						 */
 388
 389			ra		: 1,	/* PAL_CHECK attempted
 390						 * a rendezvous.
 391						 */
 392			me		: 1,	/* Distinct multiple
 393						 * errors occurred
 394						 */
 395
 396			mn		: 1,	/* Min. state save
 397						 * area has been
 398						 * registered with PAL
 399						 */
 400
 401			sy		: 1,	/* Storage integrity
 402						 * synched
 403						 */
 404
 405
 406			co		: 1,	/* Continuable */
 407			ci		: 1,	/* MC isolated */
 408			us		: 1,	/* Uncontained storage
 409						 * damage.
 410						 */
 411
 412
 413			hd		: 1,	/* Non-essential hw
 414						 * lost (no loss of
 415						 * functionality)
 416						 * causing the
 417						 * processor to run in
 418						 * degraded mode.
 419						 */
 420
 421			tl		: 1,	/* 1 => MC occurred
 422						 * after an instr was
 423						 * executed but before
 424						 * the trap that
 425						 * resulted from instr
 426						 * execution was
 427						 * generated.
 428						 * (Trap Lost )
 429						 */
 430			mi		: 1,	/* More information available
 431						 * call PAL_MC_ERROR_INFO
 432						 */
 433			pi		: 1,	/* Precise instruction pointer */
 434			pm		: 1,	/* Precise min-state save area */
 435
 436			dy		: 1,	/* Processor dynamic
 437						 * state valid
 438						 */
 439
 440
 441			in		: 1,	/* 0 = MC, 1 = INIT */
 442			rs		: 1,	/* RSE valid */
 443			cm		: 1,	/* MC corrected */
 444			ex		: 1,	/* MC is expected */
 445			cr		: 1,	/* Control regs valid*/
 446			pc		: 1,	/* Perf cntrs valid */
 447			dr		: 1,	/* Debug regs valid */
 448			tr		: 1,	/* Translation regs
 449						 * valid
 450						 */
 451			rr		: 1,	/* Region regs valid */
 452			ar		: 1,	/* App regs valid */
 453			br		: 1,	/* Branch regs valid */
 454			pr		: 1,	/* Predicate registers
 455						 * valid
 456						 */
 457
 458			fp		: 1,	/* fp registers valid*/
 459			b1		: 1,	/* Preserved bank one
 460						 * general registers
 461						 * are valid
 462						 */
 463			b0		: 1,	/* Preserved bank zero
 464						 * general registers
 465						 * are valid
 466						 */
 467			gr		: 1,	/* General registers
 468						 * are valid
 469						 * (excl. banked regs)
 470						 */
 471			dsize		: 16,	/* size of dynamic
 472						 * state returned
 473						 * by the processor
 474						 */
 475
 476			se		: 1,	/* Shared error.  MCA in a
 477						   shared structure */
 478			reserved2	: 10,
 479			cc		: 1,	/* Cache check */
 480			tc		: 1,	/* TLB check */
 481			bc		: 1,	/* Bus check */
 482			rc		: 1,	/* Register file check */
 483			uc		: 1;	/* Uarch check */
 484
 485} pal_processor_state_info_t;
 486
 487typedef struct pal_cache_check_info_s {
 488	u64		op		: 4,	/* Type of cache
 489						 * operation that
 490						 * caused the machine
 491						 * check.
 492						 */
 493			level		: 2,	/* Cache level */
 494			reserved1	: 2,
 495			dl		: 1,	/* Failure in data part
 496						 * of cache line
 497						 */
 498			tl		: 1,	/* Failure in tag part
 499						 * of cache line
 500						 */
 501			dc		: 1,	/* Failure in dcache */
 502			ic		: 1,	/* Failure in icache */
 503			mesi		: 3,	/* Cache line state */
 504			mv		: 1,	/* mesi valid */
 505			way		: 5,	/* Way in which the
 506						 * error occurred
 507						 */
 508			wiv		: 1,	/* Way field valid */
 509			reserved2	: 1,
 510			dp		: 1,	/* Data poisoned on MBE */
 511			reserved3	: 6,
 512			hlth		: 2,	/* Health indicator */
 513
 514			index		: 20,	/* Cache line index */
 515			reserved4	: 2,
 516
 517			is		: 1,	/* instruction set (1 == ia32) */
 518			iv		: 1,	/* instruction set field valid */
 519			pl		: 2,	/* privilege level */
 520			pv		: 1,	/* privilege level field valid */
 521			mcc		: 1,	/* Machine check corrected */
 522			tv		: 1,	/* Target address
 523						 * structure is valid
 524						 */
 525			rq		: 1,	/* Requester identifier
 526						 * structure is valid
 527						 */
 528			rp		: 1,	/* Responder identifier
 529						 * structure is valid
 530						 */
 531			pi		: 1;	/* Precise instruction pointer
 532						 * structure is valid
 533						 */
 534} pal_cache_check_info_t;
 535
 536typedef struct pal_tlb_check_info_s {
 537
 538	u64		tr_slot		: 8,	/* Slot# of TR where
 539						 * error occurred
 540						 */
 541			trv		: 1,	/* tr_slot field is valid */
 542			reserved1	: 1,
 543			level		: 2,	/* TLB level where failure occurred */
 544			reserved2	: 4,
 545			dtr		: 1,	/* Fail in data TR */
 546			itr		: 1,	/* Fail in inst TR */
 547			dtc		: 1,	/* Fail in data TC */
 548			itc		: 1,	/* Fail in inst. TC */
 549			op		: 4,	/* Cache operation */
 550			reserved3	: 6,
 551			hlth		: 2,	/* Health indicator */
 552			reserved4	: 22,
 553
 554			is		: 1,	/* instruction set (1 == ia32) */
 555			iv		: 1,	/* instruction set field valid */
 556			pl		: 2,	/* privilege level */
 557			pv		: 1,	/* privilege level field valid */
 558			mcc		: 1,	/* Machine check corrected */
 559			tv		: 1,	/* Target address
 560						 * structure is valid
 561						 */
 562			rq		: 1,	/* Requester identifier
 563						 * structure is valid
 564						 */
 565			rp		: 1,	/* Responder identifier
 566						 * structure is valid
 567						 */
 568			pi		: 1;	/* Precise instruction pointer
 569						 * structure is valid
 570						 */
 571} pal_tlb_check_info_t;
 572
 573typedef struct pal_bus_check_info_s {
 574	u64		size		: 5,	/* Xaction size */
 575			ib		: 1,	/* Internal bus error */
 576			eb		: 1,	/* External bus error */
 577			cc		: 1,	/* Error occurred
 578						 * during cache-cache
 579						 * transfer.
 580						 */
 581			type		: 8,	/* Bus xaction type*/
 582			sev		: 5,	/* Bus error severity*/
 583			hier		: 2,	/* Bus hierarchy level */
 584			dp		: 1,	/* Data poisoned on MBE */
 585			bsi		: 8,	/* Bus error status
 586						 * info
 587						 */
 588			reserved2	: 22,
 589
 590			is		: 1,	/* instruction set (1 == ia32) */
 591			iv		: 1,	/* instruction set field valid */
 592			pl		: 2,	/* privilege level */
 593			pv		: 1,	/* privilege level field valid */
 594			mcc		: 1,	/* Machine check corrected */
 595			tv		: 1,	/* Target address
 596						 * structure is valid
 597						 */
 598			rq		: 1,	/* Requester identifier
 599						 * structure is valid
 600						 */
 601			rp		: 1,	/* Responder identifier
 602						 * structure is valid
 603						 */
 604			pi		: 1;	/* Precise instruction pointer
 605						 * structure is valid
 606						 */
 607} pal_bus_check_info_t;
 608
 609typedef struct pal_reg_file_check_info_s {
 610	u64		id		: 4,	/* Register file identifier */
 611			op		: 4,	/* Type of register
 612						 * operation that
 613						 * caused the machine
 614						 * check.
 615						 */
 616			reg_num		: 7,	/* Register number */
 617			rnv		: 1,	/* reg_num valid */
 618			reserved2	: 38,
 619
 620			is		: 1,	/* instruction set (1 == ia32) */
 621			iv		: 1,	/* instruction set field valid */
 622			pl		: 2,	/* privilege level */
 623			pv		: 1,	/* privilege level field valid */
 624			mcc		: 1,	/* Machine check corrected */
 625			reserved3	: 3,
 626			pi		: 1;	/* Precise instruction pointer
 627						 * structure is valid
 628						 */
 629} pal_reg_file_check_info_t;
 630
 631typedef struct pal_uarch_check_info_s {
 632	u64		sid		: 5,	/* Structure identification */
 633			level		: 3,	/* Level of failure */
 634			array_id	: 4,	/* Array identification */
 635			op		: 4,	/* Type of
 636						 * operation that
 637						 * caused the machine
 638						 * check.
 639						 */
 640			way		: 6,	/* Way of structure */
 641			wv		: 1,	/* way valid */
 642			xv		: 1,	/* index valid */
 643			reserved1	: 6,
 644			hlth		: 2,	/* Health indicator */
 645			index		: 8,	/* Index or set of the uarch
 646						 * structure that failed.
 647						 */
 648			reserved2	: 24,
 649
 650			is		: 1,	/* instruction set (1 == ia32) */
 651			iv		: 1,	/* instruction set field valid */
 652			pl		: 2,	/* privilege level */
 653			pv		: 1,	/* privilege level field valid */
 654			mcc		: 1,	/* Machine check corrected */
 655			tv		: 1,	/* Target address
 656						 * structure is valid
 657						 */
 658			rq		: 1,	/* Requester identifier
 659						 * structure is valid
 660						 */
 661			rp		: 1,	/* Responder identifier
 662						 * structure is valid
 663						 */
 664			pi		: 1;	/* Precise instruction pointer
 665						 * structure is valid
 666						 */
 667} pal_uarch_check_info_t;
 668
 669typedef union pal_mc_error_info_u {
 670	u64				pmei_data;
 671	pal_processor_state_info_t	pme_processor;
 672	pal_cache_check_info_t		pme_cache;
 673	pal_tlb_check_info_t		pme_tlb;
 674	pal_bus_check_info_t		pme_bus;
 675	pal_reg_file_check_info_t	pme_reg_file;
 676	pal_uarch_check_info_t		pme_uarch;
 677} pal_mc_error_info_t;
 678
 679#define pmci_proc_unknown_check			pme_processor.uc
 680#define pmci_proc_bus_check			pme_processor.bc
 681#define pmci_proc_tlb_check			pme_processor.tc
 682#define pmci_proc_cache_check			pme_processor.cc
 683#define pmci_proc_dynamic_state_size		pme_processor.dsize
 684#define pmci_proc_gpr_valid			pme_processor.gr
 685#define pmci_proc_preserved_bank0_gpr_valid	pme_processor.b0
 686#define pmci_proc_preserved_bank1_gpr_valid	pme_processor.b1
 687#define pmci_proc_fp_valid			pme_processor.fp
 688#define pmci_proc_predicate_regs_valid		pme_processor.pr
 689#define pmci_proc_branch_regs_valid		pme_processor.br
 690#define pmci_proc_app_regs_valid		pme_processor.ar
 691#define pmci_proc_region_regs_valid		pme_processor.rr
 692#define pmci_proc_translation_regs_valid	pme_processor.tr
 693#define pmci_proc_debug_regs_valid		pme_processor.dr
 694#define pmci_proc_perf_counters_valid		pme_processor.pc
 695#define pmci_proc_control_regs_valid		pme_processor.cr
 696#define pmci_proc_machine_check_expected	pme_processor.ex
 697#define pmci_proc_machine_check_corrected	pme_processor.cm
 698#define pmci_proc_rse_valid			pme_processor.rs
 699#define pmci_proc_machine_check_or_init		pme_processor.in
 700#define pmci_proc_dynamic_state_valid		pme_processor.dy
 701#define pmci_proc_operation			pme_processor.op
 702#define pmci_proc_trap_lost			pme_processor.tl
 703#define pmci_proc_hardware_damage		pme_processor.hd
 704#define pmci_proc_uncontained_storage_damage	pme_processor.us
 705#define pmci_proc_machine_check_isolated	pme_processor.ci
 706#define pmci_proc_continuable			pme_processor.co
 707#define pmci_proc_storage_intergrity_synced	pme_processor.sy
 708#define pmci_proc_min_state_save_area_regd	pme_processor.mn
 709#define	pmci_proc_distinct_multiple_errors	pme_processor.me
 710#define pmci_proc_pal_attempted_rendezvous	pme_processor.ra
 711#define pmci_proc_pal_rendezvous_complete	pme_processor.rz
 712
 713
 714#define pmci_cache_level			pme_cache.level
 715#define pmci_cache_line_state			pme_cache.mesi
 716#define pmci_cache_line_state_valid		pme_cache.mv
 717#define pmci_cache_line_index			pme_cache.index
 718#define pmci_cache_instr_cache_fail		pme_cache.ic
 719#define pmci_cache_data_cache_fail		pme_cache.dc
 720#define pmci_cache_line_tag_fail		pme_cache.tl
 721#define pmci_cache_line_data_fail		pme_cache.dl
 722#define pmci_cache_operation			pme_cache.op
 723#define pmci_cache_way_valid			pme_cache.wv
 724#define pmci_cache_target_address_valid		pme_cache.tv
 725#define pmci_cache_way				pme_cache.way
 726#define pmci_cache_mc				pme_cache.mc
 727
 728#define pmci_tlb_instr_translation_cache_fail	pme_tlb.itc
 729#define pmci_tlb_data_translation_cache_fail	pme_tlb.dtc
 730#define pmci_tlb_instr_translation_reg_fail	pme_tlb.itr
 731#define pmci_tlb_data_translation_reg_fail	pme_tlb.dtr
 732#define pmci_tlb_translation_reg_slot		pme_tlb.tr_slot
 733#define pmci_tlb_mc				pme_tlb.mc
 734
 735#define pmci_bus_status_info			pme_bus.bsi
 736#define pmci_bus_req_address_valid		pme_bus.rq
 737#define pmci_bus_resp_address_valid		pme_bus.rp
 738#define pmci_bus_target_address_valid		pme_bus.tv
 739#define pmci_bus_error_severity			pme_bus.sev
 740#define pmci_bus_transaction_type		pme_bus.type
 741#define pmci_bus_cache_cache_transfer		pme_bus.cc
 742#define pmci_bus_transaction_size		pme_bus.size
 743#define pmci_bus_internal_error			pme_bus.ib
 744#define pmci_bus_external_error			pme_bus.eb
 745#define pmci_bus_mc				pme_bus.mc
 746
 747/*
 748 * NOTE: this min_state_save area struct only includes the 1KB
 749 * architectural state save area.  The other 3 KB is scratch space
 750 * for PAL.
 751 */
 752
 753typedef struct pal_min_state_area_s {
 754	u64	pmsa_nat_bits;		/* nat bits for saved GRs  */
 755	u64	pmsa_gr[15];		/* GR1	- GR15		   */
 756	u64	pmsa_bank0_gr[16];	/* GR16 - GR31		   */
 757	u64	pmsa_bank1_gr[16];	/* GR16 - GR31		   */
 758	u64	pmsa_pr;		/* predicate registers	   */
 759	u64	pmsa_br0;		/* branch register 0	   */
 760	u64	pmsa_rsc;		/* ar.rsc		   */
 761	u64	pmsa_iip;		/* cr.iip		   */
 762	u64	pmsa_ipsr;		/* cr.ipsr		   */
 763	u64	pmsa_ifs;		/* cr.ifs		   */
 764	u64	pmsa_xip;		/* previous iip		   */
 765	u64	pmsa_xpsr;		/* previous psr		   */
 766	u64	pmsa_xfs;		/* previous ifs		   */
 767	u64	pmsa_br1;		/* branch register 1	   */
 768	u64	pmsa_reserved[70];	/* pal_min_state_area should total to 1KB */
 769} pal_min_state_area_t;
 770
 771
 772struct ia64_pal_retval {
 773	/*
 774	 * A zero status value indicates call completed without error.
 775	 * A negative status value indicates reason of call failure.
 776	 * A positive status value indicates success but an
 777	 * informational value should be printed (e.g., "reboot for
 778	 * change to take effect").
 779	 */
 780	s64 status;
 781	u64 v0;
 782	u64 v1;
 783	u64 v2;
 784};
 785
 786/*
 787 * Note: Currently unused PAL arguments are generally labeled
 788 * "reserved" so the value specified in the PAL documentation
 789 * (generally 0) MUST be passed.  Reserved parameters are not optional
 790 * parameters.
 791 */
 792extern struct ia64_pal_retval ia64_pal_call_static (u64, u64, u64, u64);
 793extern struct ia64_pal_retval ia64_pal_call_stacked (u64, u64, u64, u64);
 794extern struct ia64_pal_retval ia64_pal_call_phys_static (u64, u64, u64, u64);
 795extern struct ia64_pal_retval ia64_pal_call_phys_stacked (u64, u64, u64, u64);
 796extern void ia64_save_scratch_fpregs (struct ia64_fpreg *);
 797extern void ia64_load_scratch_fpregs (struct ia64_fpreg *);
 798
 799#define PAL_CALL(iprv,a0,a1,a2,a3) do {			\
 800	struct ia64_fpreg fr[6];			\
 801	ia64_save_scratch_fpregs(fr);			\
 802	iprv = ia64_pal_call_static(a0, a1, a2, a3);	\
 803	ia64_load_scratch_fpregs(fr);			\
 804} while (0)
 805
 806#define PAL_CALL_STK(iprv,a0,a1,a2,a3) do {		\
 807	struct ia64_fpreg fr[6];			\
 808	ia64_save_scratch_fpregs(fr);			\
 809	iprv = ia64_pal_call_stacked(a0, a1, a2, a3);	\
 810	ia64_load_scratch_fpregs(fr);			\
 811} while (0)
 812
 813#define PAL_CALL_PHYS(iprv,a0,a1,a2,a3) do {			\
 814	struct ia64_fpreg fr[6];				\
 815	ia64_save_scratch_fpregs(fr);				\
 816	iprv = ia64_pal_call_phys_static(a0, a1, a2, a3);	\
 817	ia64_load_scratch_fpregs(fr);				\
 818} while (0)
 819
 820#define PAL_CALL_PHYS_STK(iprv,a0,a1,a2,a3) do {		\
 821	struct ia64_fpreg fr[6];				\
 822	ia64_save_scratch_fpregs(fr);				\
 823	iprv = ia64_pal_call_phys_stacked(a0, a1, a2, a3);	\
 824	ia64_load_scratch_fpregs(fr);				\
 825} while (0)
 826
 827typedef int (*ia64_pal_handler) (u64, ...);
 828extern ia64_pal_handler ia64_pal;
 829extern void ia64_pal_handler_init (void *);
 830
 831extern ia64_pal_handler ia64_pal;
 832
 833extern pal_cache_config_info_t		l0d_cache_config_info;
 834extern pal_cache_config_info_t		l0i_cache_config_info;
 835extern pal_cache_config_info_t		l1_cache_config_info;
 836extern pal_cache_config_info_t		l2_cache_config_info;
 837
 838extern pal_cache_protection_info_t	l0d_cache_protection_info;
 839extern pal_cache_protection_info_t	l0i_cache_protection_info;
 840extern pal_cache_protection_info_t	l1_cache_protection_info;
 841extern pal_cache_protection_info_t	l2_cache_protection_info;
 842
 843extern pal_cache_config_info_t		pal_cache_config_info_get(pal_cache_level_t,
 844								  pal_cache_type_t);
 845
 846extern pal_cache_protection_info_t	pal_cache_protection_info_get(pal_cache_level_t,
 847								      pal_cache_type_t);
 848
 849
 850extern void				pal_error(int);
 851
 852
 853/* Useful wrappers for the current list of pal procedures */
 854
 855typedef union pal_bus_features_u {
 856	u64	pal_bus_features_val;
 857	struct {
 858		u64	pbf_reserved1				:	29;
 859		u64	pbf_req_bus_parking			:	1;
 860		u64	pbf_bus_lock_mask			:	1;
 861		u64	pbf_enable_half_xfer_rate		:	1;
 862		u64	pbf_reserved2				:	20;
 863		u64	pbf_enable_shared_line_replace		:	1;
 864		u64	pbf_enable_exclusive_line_replace	:	1;
 865		u64	pbf_disable_xaction_queueing		:	1;
 866		u64	pbf_disable_resp_err_check		:	1;
 867		u64	pbf_disable_berr_check			:	1;
 868		u64	pbf_disable_bus_req_internal_err_signal	:	1;
 869		u64	pbf_disable_bus_req_berr_signal		:	1;
 870		u64	pbf_disable_bus_init_event_check	:	1;
 871		u64	pbf_disable_bus_init_event_signal	:	1;
 872		u64	pbf_disable_bus_addr_err_check		:	1;
 873		u64	pbf_disable_bus_addr_err_signal		:	1;
 874		u64	pbf_disable_bus_data_err_check		:	1;
 875	} pal_bus_features_s;
 876} pal_bus_features_u_t;
 877
 878extern void pal_bus_features_print (u64);
 879
 880/* Provide information about configurable processor bus features */
 881static inline s64
 882ia64_pal_bus_get_features (pal_bus_features_u_t *features_avail,
 883			   pal_bus_features_u_t *features_status,
 884			   pal_bus_features_u_t *features_control)
 885{
 886	struct ia64_pal_retval iprv;
 887	PAL_CALL_PHYS(iprv, PAL_BUS_GET_FEATURES, 0, 0, 0);
 888	if (features_avail)
 889		features_avail->pal_bus_features_val = iprv.v0;
 890	if (features_status)
 891		features_status->pal_bus_features_val = iprv.v1;
 892	if (features_control)
 893		features_control->pal_bus_features_val = iprv.v2;
 894	return iprv.status;
 895}
 896
 897/* Enables/disables specific processor bus features */
 898static inline s64
 899ia64_pal_bus_set_features (pal_bus_features_u_t feature_select)
 900{
 901	struct ia64_pal_retval iprv;
 902	PAL_CALL_PHYS(iprv, PAL_BUS_SET_FEATURES, feature_select.pal_bus_features_val, 0, 0);
 903	return iprv.status;
 904}
 905
 906/* Get detailed cache information */
 907static inline s64
 908ia64_pal_cache_config_info (u64 cache_level, u64 cache_type, pal_cache_config_info_t *conf)
 909{
 910	struct ia64_pal_retval iprv;
 911
 912	PAL_CALL(iprv, PAL_CACHE_INFO, cache_level, cache_type, 0);
 913
 914	if (iprv.status == 0) {
 915		conf->pcci_status                 = iprv.status;
 916		conf->pcci_info_1.pcci1_data      = iprv.v0;
 917		conf->pcci_info_2.pcci2_data      = iprv.v1;
 918		conf->pcci_reserved               = iprv.v2;
 919	}
 920	return iprv.status;
 921
 922}
 923
 924/* Get detailed cche protection information */
 925static inline s64
 926ia64_pal_cache_prot_info (u64 cache_level, u64 cache_type, pal_cache_protection_info_t *prot)
 927{
 928	struct ia64_pal_retval iprv;
 929
 930	PAL_CALL(iprv, PAL_CACHE_PROT_INFO, cache_level, cache_type, 0);
 931
 932	if (iprv.status == 0) {
 933		prot->pcpi_status           = iprv.status;
 934		prot->pcp_info[0].pcpi_data = iprv.v0 & 0xffffffff;
 935		prot->pcp_info[1].pcpi_data = iprv.v0 >> 32;
 936		prot->pcp_info[2].pcpi_data = iprv.v1 & 0xffffffff;
 937		prot->pcp_info[3].pcpi_data = iprv.v1 >> 32;
 938		prot->pcp_info[4].pcpi_data = iprv.v2 & 0xffffffff;
 939		prot->pcp_info[5].pcpi_data = iprv.v2 >> 32;
 940	}
 941	return iprv.status;
 942}
 943
 944/*
 945 * Flush the processor instruction or data caches.  *PROGRESS must be
 946 * initialized to zero before calling this for the first time..
 947 */
 948static inline s64
 949ia64_pal_cache_flush (u64 cache_type, u64 invalidate, u64 *progress, u64 *vector)
 950{
 951	struct ia64_pal_retval iprv;
 952	PAL_CALL(iprv, PAL_CACHE_FLUSH, cache_type, invalidate, *progress);
 953	if (vector)
 954		*vector = iprv.v0;
 955	*progress = iprv.v1;
 956	return iprv.status;
 957}
 958
 959
 960/* Initialize the processor controlled caches */
 961static inline s64
 962ia64_pal_cache_init (u64 level, u64 cache_type, u64 rest)
 963{
 964	struct ia64_pal_retval iprv;
 965	PAL_CALL(iprv, PAL_CACHE_INIT, level, cache_type, rest);
 966	return iprv.status;
 967}
 968
 969/* Initialize the tags and data of a data or unified cache line of
 970 * processor controlled cache to known values without the availability
 971 * of backing memory.
 972 */
 973static inline s64
 974ia64_pal_cache_line_init (u64 physical_addr, u64 data_value)
 975{
 976	struct ia64_pal_retval iprv;
 977	PAL_CALL(iprv, PAL_CACHE_LINE_INIT, physical_addr, data_value, 0);
 978	return iprv.status;
 979}
 980
 981
 982/* Read the data and tag of a processor controlled cache line for diags */
 983static inline s64
 984ia64_pal_cache_read (pal_cache_line_id_u_t line_id, u64 physical_addr)
 985{
 986	struct ia64_pal_retval iprv;
 987	PAL_CALL_PHYS_STK(iprv, PAL_CACHE_READ, line_id.pclid_data,
 988				physical_addr, 0);
 989	return iprv.status;
 990}
 991
 992/* Return summary information about the hierarchy of caches controlled by the processor */
 993static inline long ia64_pal_cache_summary(unsigned long *cache_levels,
 994						unsigned long *unique_caches)
 995{
 996	struct ia64_pal_retval iprv;
 997	PAL_CALL(iprv, PAL_CACHE_SUMMARY, 0, 0, 0);
 998	if (cache_levels)
 999		*cache_levels = iprv.v0;
1000	if (unique_caches)
1001		*unique_caches = iprv.v1;
1002	return iprv.status;
1003}
1004
1005/* Write the data and tag of a processor-controlled cache line for diags */
1006static inline s64
1007ia64_pal_cache_write (pal_cache_line_id_u_t line_id, u64 physical_addr, u64 data)
1008{
1009	struct ia64_pal_retval iprv;
1010	PAL_CALL_PHYS_STK(iprv, PAL_CACHE_WRITE, line_id.pclid_data,
1011				physical_addr, data);
1012	return iprv.status;
1013}
1014
1015
1016/* Return the parameters needed to copy relocatable PAL procedures from ROM to memory */
1017static inline s64
1018ia64_pal_copy_info (u64 copy_type, u64 num_procs, u64 num_iopics,
1019		    u64 *buffer_size, u64 *buffer_align)
1020{
1021	struct ia64_pal_retval iprv;
1022	PAL_CALL(iprv, PAL_COPY_INFO, copy_type, num_procs, num_iopics);
1023	if (buffer_size)
1024		*buffer_size = iprv.v0;
1025	if (buffer_align)
1026		*buffer_align = iprv.v1;
1027	return iprv.status;
1028}
1029
1030/* Copy relocatable PAL procedures from ROM to memory */
1031static inline s64
1032ia64_pal_copy_pal (u64 target_addr, u64 alloc_size, u64 processor, u64 *pal_proc_offset)
1033{
1034	struct ia64_pal_retval iprv;
1035	PAL_CALL(iprv, PAL_COPY_PAL, target_addr, alloc_size, processor);
1036	if (pal_proc_offset)
1037		*pal_proc_offset = iprv.v0;
1038	return iprv.status;
1039}
1040
1041/* Return the number of instruction and data debug register pairs */
1042static inline long ia64_pal_debug_info(unsigned long *inst_regs,
1043						unsigned long *data_regs)
1044{
1045	struct ia64_pal_retval iprv;
1046	PAL_CALL(iprv, PAL_DEBUG_INFO, 0, 0, 0);
1047	if (inst_regs)
1048		*inst_regs = iprv.v0;
1049	if (data_regs)
1050		*data_regs = iprv.v1;
1051
1052	return iprv.status;
1053}
1054
1055#ifdef TBD
1056/* Switch from IA64-system environment to IA-32 system environment */
1057static inline s64
1058ia64_pal_enter_ia32_env (ia32_env1, ia32_env2, ia32_env3)
1059{
1060	struct ia64_pal_retval iprv;
1061	PAL_CALL(iprv, PAL_ENTER_IA_32_ENV, ia32_env1, ia32_env2, ia32_env3);
1062	return iprv.status;
1063}
1064#endif
1065
1066/* Get unique geographical address of this processor on its bus */
1067static inline s64
1068ia64_pal_fixed_addr (u64 *global_unique_addr)
1069{
1070	struct ia64_pal_retval iprv;
1071	PAL_CALL(iprv, PAL_FIXED_ADDR, 0, 0, 0);
1072	if (global_unique_addr)
1073		*global_unique_addr = iprv.v0;
1074	return iprv.status;
1075}
1076
1077/* Get base frequency of the platform if generated by the processor */
1078static inline long ia64_pal_freq_base(unsigned long *platform_base_freq)
1079{
1080	struct ia64_pal_retval iprv;
1081	PAL_CALL(iprv, PAL_FREQ_BASE, 0, 0, 0);
1082	if (platform_base_freq)
1083		*platform_base_freq = iprv.v0;
1084	return iprv.status;
1085}
1086
1087/*
1088 * Get the ratios for processor frequency, bus frequency and interval timer to
1089 * to base frequency of the platform
1090 */
1091static inline s64
1092ia64_pal_freq_ratios (struct pal_freq_ratio *proc_ratio, struct pal_freq_ratio *bus_ratio,
1093		      struct pal_freq_ratio *itc_ratio)
1094{
1095	struct ia64_pal_retval iprv;
1096	PAL_CALL(iprv, PAL_FREQ_RATIOS, 0, 0, 0);
1097	if (proc_ratio)
1098		*(u64 *)proc_ratio = iprv.v0;
1099	if (bus_ratio)
1100		*(u64 *)bus_ratio = iprv.v1;
1101	if (itc_ratio)
1102		*(u64 *)itc_ratio = iprv.v2;
1103	return iprv.status;
1104}
1105
1106/*
1107 * Get the current hardware resource sharing policy of the processor
1108 */
1109static inline s64
1110ia64_pal_get_hw_policy (u64 proc_num, u64 *cur_policy, u64 *num_impacted,
1111			u64 *la)
1112{
1113	struct ia64_pal_retval iprv;
1114	PAL_CALL(iprv, PAL_GET_HW_POLICY, proc_num, 0, 0);
1115	if (cur_policy)
1116		*cur_policy = iprv.v0;
1117	if (num_impacted)
1118		*num_impacted = iprv.v1;
1119	if (la)
1120		*la = iprv.v2;
1121	return iprv.status;
1122}
1123
1124/* Make the processor enter HALT or one of the implementation dependent low
1125 * power states where prefetching and execution are suspended and cache and
1126 * TLB coherency is not maintained.
1127 */
1128static inline s64
1129ia64_pal_halt (u64 halt_state)
1130{
1131	struct ia64_pal_retval iprv;
1132	PAL_CALL(iprv, PAL_HALT, halt_state, 0, 0);
1133	return iprv.status;
1134}
1135
1136typedef union pal_power_mgmt_info_u {
1137	u64			ppmi_data;
1138	struct {
1139	       u64		exit_latency		: 16,
1140				entry_latency		: 16,
1141				power_consumption	: 28,
1142				im			: 1,
1143				co			: 1,
1144				reserved		: 2;
1145	} pal_power_mgmt_info_s;
1146} pal_power_mgmt_info_u_t;
1147
1148/* Return information about processor's optional power management capabilities. */
1149static inline s64
1150ia64_pal_halt_info (pal_power_mgmt_info_u_t *power_buf)
1151{
1152	struct ia64_pal_retval iprv;
1153	PAL_CALL_STK(iprv, PAL_HALT_INFO, (unsigned long) power_buf, 0, 0);
1154	return iprv.status;
1155}
1156
1157/* Get the current P-state information */
1158static inline s64
1159ia64_pal_get_pstate (u64 *pstate_index, unsigned long type)
1160{
1161	struct ia64_pal_retval iprv;
1162	PAL_CALL_STK(iprv, PAL_GET_PSTATE, type, 0, 0);
1163	*pstate_index = iprv.v0;
1164	return iprv.status;
1165}
1166
1167/* Set the P-state */
1168static inline s64
1169ia64_pal_set_pstate (u64 pstate_index)
1170{
1171	struct ia64_pal_retval iprv;
1172	PAL_CALL_STK(iprv, PAL_SET_PSTATE, pstate_index, 0, 0);
1173	return iprv.status;
1174}
1175
1176/* Processor branding information*/
1177static inline s64
1178ia64_pal_get_brand_info (char *brand_info)
1179{
1180	struct ia64_pal_retval iprv;
1181	PAL_CALL_STK(iprv, PAL_BRAND_INFO, 0, (u64)brand_info, 0);
1182	return iprv.status;
1183}
1184
1185/* Cause the processor to enter LIGHT HALT state, where prefetching and execution are
1186 * suspended, but cache and TLB coherency is maintained.
1187 */
1188static inline s64
1189ia64_pal_halt_light (void)
1190{
1191	struct ia64_pal_retval iprv;
1192	PAL_CALL(iprv, PAL_HALT_LIGHT, 0, 0, 0);
1193	return iprv.status;
1194}
1195
1196/* Clear all the processor error logging   registers and reset the indicator that allows
1197 * the error logging registers to be written. This procedure also checks the pending
1198 * machine check bit and pending INIT bit and reports their states.
1199 */
1200static inline s64
1201ia64_pal_mc_clear_log (u64 *pending_vector)
1202{
1203	struct ia64_pal_retval iprv;
1204	PAL_CALL(iprv, PAL_MC_CLEAR_LOG, 0, 0, 0);
1205	if (pending_vector)
1206		*pending_vector = iprv.v0;
1207	return iprv.status;
1208}
1209
1210/* Ensure that all outstanding transactions in a processor are completed or that any
1211 * MCA due to thes outstanding transaction is taken.
1212 */
1213static inline s64
1214ia64_pal_mc_drain (void)
1215{
1216	struct ia64_pal_retval iprv;
1217	PAL_CALL(iprv, PAL_MC_DRAIN, 0, 0, 0);
1218	return iprv.status;
1219}
1220
1221/* Return the machine check dynamic processor state */
1222static inline s64
1223ia64_pal_mc_dynamic_state (u64 info_type, u64 dy_buffer, u64 *size)
1224{
1225	struct ia64_pal_retval iprv;
1226	PAL_CALL(iprv, PAL_MC_DYNAMIC_STATE, info_type, dy_buffer, 0);
1227	if (size)
1228		*size = iprv.v0;
1229	return iprv.status;
1230}
1231
1232/* Return processor machine check information */
1233static inline s64
1234ia64_pal_mc_error_info (u64 info_index, u64 type_index, u64 *size, u64 *error_info)
1235{
1236	struct ia64_pal_retval iprv;
1237	PAL_CALL(iprv, PAL_MC_ERROR_INFO, info_index, type_index, 0);
1238	if (size)
1239		*size = iprv.v0;
1240	if (error_info)
1241		*error_info = iprv.v1;
1242	return iprv.status;
1243}
1244
1245/* Injects the requested processor error or returns info on
1246 * supported injection capabilities for current processor implementation
1247 */
1248static inline s64
1249ia64_pal_mc_error_inject_phys (u64 err_type_info, u64 err_struct_info,
1250			u64 err_data_buffer, u64 *capabilities, u64 *resources)
1251{
1252	struct ia64_pal_retval iprv;
1253	PAL_CALL_PHYS_STK(iprv, PAL_MC_ERROR_INJECT, err_type_info,
1254			  err_struct_info, err_data_buffer);
1255	if (capabilities)
1256		*capabilities= iprv.v0;
1257	if (resources)
1258		*resources= iprv.v1;
1259	return iprv.status;
1260}
1261
1262static inline s64
1263ia64_pal_mc_error_inject_virt (u64 err_type_info, u64 err_struct_info,
1264			u64 err_data_buffer, u64 *capabilities, u64 *resources)
1265{
1266	struct ia64_pal_retval iprv;
1267	PAL_CALL_STK(iprv, PAL_MC_ERROR_INJECT, err_type_info,
1268			  err_struct_info, err_data_buffer);
1269	if (capabilities)
1270		*capabilities= iprv.v0;
1271	if (resources)
1272		*resources= iprv.v1;
1273	return iprv.status;
1274}
1275
1276/* Inform PALE_CHECK whether a machine check is expected so that PALE_CHECK willnot
1277 * attempt to correct any expected machine checks.
1278 */
1279static inline s64
1280ia64_pal_mc_expected (u64 expected, u64 *previous)
1281{
1282	struct ia64_pal_retval iprv;
1283	PAL_CALL(iprv, PAL_MC_EXPECTED, expected, 0, 0);
1284	if (previous)
1285		*previous = iprv.v0;
1286	return iprv.status;
1287}
1288
1289typedef union pal_hw_tracking_u {
1290	u64			pht_data;
1291	struct {
1292		u64		itc	:4,	/* Instruction cache tracking */
1293				dct	:4,	/* Date cache tracking */
1294				itt	:4,	/* Instruction TLB tracking */
1295				ddt	:4,	/* Data TLB tracking */
1296				reserved:48;
1297	} pal_hw_tracking_s;
1298} pal_hw_tracking_u_t;
1299
1300/*
1301 * Hardware tracking status.
1302 */
1303static inline s64
1304ia64_pal_mc_hw_tracking (u64 *status)
1305{
1306	struct ia64_pal_retval iprv;
1307	PAL_CALL(iprv, PAL_MC_HW_TRACKING, 0, 0, 0);
1308	if (status)
1309		*status = iprv.v0;
1310	return iprv.status;
1311}
1312
1313/* Register a platform dependent location with PAL to which it can save
1314 * minimal processor state in the event of a machine check or initialization
1315 * event.
1316 */
1317static inline s64
1318ia64_pal_mc_register_mem (u64 physical_addr, u64 size, u64 *req_size)
1319{
1320	struct ia64_pal_retval iprv;
1321	PAL_CALL(iprv, PAL_MC_REGISTER_MEM, physical_addr, size, 0);
1322	if (req_size)
1323		*req_size = iprv.v0;
1324	return iprv.status;
1325}
1326
1327/* Restore minimal architectural processor state, set CMC interrupt if necessary
1328 * and resume execution
1329 */
1330static inline s64
1331ia64_pal_mc_resume (u64 set_cmci, u64 save_ptr)
1332{
1333	struct ia64_pal_retval iprv;
1334	PAL_CALL(iprv, PAL_MC_RESUME, set_cmci, save_ptr, 0);
1335	return iprv.status;
1336}
1337
1338/* Return the memory attributes implemented by the processor */
1339static inline s64
1340ia64_pal_mem_attrib (u64 *mem_attrib)
1341{
1342	struct ia64_pal_retval iprv;
1343	PAL_CALL(iprv, PAL_MEM_ATTRIB, 0, 0, 0);
1344	if (mem_attrib)
1345		*mem_attrib = iprv.v0 & 0xff;
1346	return iprv.status;
1347}
1348
1349/* Return the amount of memory needed for second phase of processor
1350 * self-test and the required alignment of memory.
1351 */
1352static inline s64
1353ia64_pal_mem_for_test (u64 *bytes_needed, u64 *alignment)
1354{
1355	struct ia64_pal_retval iprv;
1356	PAL_CALL(iprv, PAL_MEM_FOR_TEST, 0, 0, 0);
1357	if (bytes_needed)
1358		*bytes_needed = iprv.v0;
1359	if (alignment)
1360		*alignment = iprv.v1;
1361	return iprv.status;
1362}
1363
1364typedef union pal_perf_mon_info_u {
1365	u64			  ppmi_data;
1366	struct {
1367	       u64		generic		: 8,
1368				width		: 8,
1369				cycles		: 8,
1370				retired		: 8,
1371				reserved	: 32;
1372	} pal_perf_mon_info_s;
1373} pal_perf_mon_info_u_t;
1374
1375/* Return the performance monitor information about what can be counted
1376 * and how to configure the monitors to count the desired events.
1377 */
1378static inline s64
1379ia64_pal_perf_mon_info (u64 *pm_buffer, pal_perf_mon_info_u_t *pm_info)
1380{
1381	struct ia64_pal_retval iprv;
1382	PAL_CALL(iprv, PAL_PERF_MON_INFO, (unsigned long) pm_buffer, 0, 0);
1383	if (pm_info)
1384		pm_info->ppmi_data = iprv.v0;
1385	return iprv.status;
1386}
1387
1388/* Specifies the physical address of the processor interrupt block
1389 * and I/O port space.
1390 */
1391static inline s64
1392ia64_pal_platform_addr (u64 type, u64 physical_addr)
1393{
1394	struct ia64_pal_retval iprv;
1395	PAL_CALL(iprv, PAL_PLATFORM_ADDR, type, physical_addr, 0);
1396	return iprv.status;
1397}
1398
1399/* Set the SAL PMI entrypoint in memory */
1400static inline s64
1401ia64_pal_pmi_entrypoint (u64 sal_pmi_entry_addr)
1402{
1403	struct ia64_pal_retval iprv;
1404	PAL_CALL(iprv, PAL_PMI_ENTRYPOINT, sal_pmi_entry_addr, 0, 0);
1405	return iprv.status;
1406}
1407
1408struct pal_features_s;
1409/* Provide information about configurable processor features */
1410static inline s64
1411ia64_pal_proc_get_features (u64 *features_avail,
1412			    u64 *features_status,
1413			    u64 *features_control,
1414			    u64 features_set)
1415{
1416	struct ia64_pal_retval iprv;
1417	PAL_CALL_PHYS(iprv, PAL_PROC_GET_FEATURES, 0, features_set, 0);
1418	if (iprv.status == 0) {
1419		*features_avail   = iprv.v0;
1420		*features_status  = iprv.v1;
1421		*features_control = iprv.v2;
1422	}
1423	return iprv.status;
1424}
1425
1426/* Enable/disable processor dependent features */
1427static inline s64
1428ia64_pal_proc_set_features (u64 feature_select)
1429{
1430	struct ia64_pal_retval iprv;
1431	PAL_CALL_PHYS(iprv, PAL_PROC_SET_FEATURES, feature_select, 0, 0);
1432	return iprv.status;
1433}
1434
1435/*
1436 * Put everything in a struct so we avoid the global offset table whenever
1437 * possible.
1438 */
1439typedef struct ia64_ptce_info_s {
1440	unsigned long	base;
1441	u32		count[2];
1442	u32		stride[2];
1443} ia64_ptce_info_t;
1444
1445/* Return the information required for the architected loop used to purge
1446 * (initialize) the entire TC
1447 */
1448static inline s64
1449ia64_get_ptce (ia64_ptce_info_t *ptce)
1450{
1451	struct ia64_pal_retval iprv;
1452
1453	if (!ptce)
1454		return -1;
1455
1456	PAL_CALL(iprv, PAL_PTCE_INFO, 0, 0, 0);
1457	if (iprv.status == 0) {
1458		ptce->base = iprv.v0;
1459		ptce->count[0] = iprv.v1 >> 32;
1460		ptce->count[1] = iprv.v1 & 0xffffffff;
1461		ptce->stride[0] = iprv.v2 >> 32;
1462		ptce->stride[1] = iprv.v2 & 0xffffffff;
1463	}
1464	return iprv.status;
1465}
1466
1467/* Return info about implemented application and control registers. */
1468static inline s64
1469ia64_pal_register_info (u64 info_request, u64 *reg_info_1, u64 *reg_info_2)
1470{
1471	struct ia64_pal_retval iprv;
1472	PAL_CALL(iprv, PAL_REGISTER_INFO, info_request, 0, 0);
1473	if (reg_info_1)
1474		*reg_info_1 = iprv.v0;
1475	if (reg_info_2)
1476		*reg_info_2 = iprv.v1;
1477	return iprv.status;
1478}
1479
1480typedef union pal_hints_u {
1481	unsigned long		ph_data;
1482	struct {
1483	       unsigned long	si		: 1,
1484				li		: 1,
1485				reserved	: 62;
1486	} pal_hints_s;
1487} pal_hints_u_t;
1488
1489/* Return information about the register stack and RSE for this processor
1490 * implementation.
1491 */
1492static inline long ia64_pal_rse_info(unsigned long *num_phys_stacked,
1493							pal_hints_u_t *hints)
1494{
1495	struct ia64_pal_retval iprv;
1496	PAL_CALL(iprv, PAL_RSE_INFO, 0, 0, 0);
1497	if (num_phys_stacked)
1498		*num_phys_stacked = iprv.v0;
1499	if (hints)
1500		hints->ph_data = iprv.v1;
1501	return iprv.status;
1502}
1503
1504/*
1505 * Set the current hardware resource sharing policy of the processor
1506 */
1507static inline s64
1508ia64_pal_set_hw_policy (u64 policy)
1509{
1510	struct ia64_pal_retval iprv;
1511	PAL_CALL(iprv, PAL_SET_HW_POLICY, policy, 0, 0);
1512	return iprv.status;
1513}
1514
1515/* Cause the processor to enter	SHUTDOWN state, where prefetching and execution are
1516 * suspended, but cause cache and TLB coherency to be maintained.
1517 * This is usually called in IA-32 mode.
1518 */
1519static inline s64
1520ia64_pal_shutdown (void)
1521{
1522	struct ia64_pal_retval iprv;
1523	PAL_CALL(iprv, PAL_SHUTDOWN, 0, 0, 0);
1524	return iprv.status;
1525}
1526
1527/* Perform the second phase of processor self-test. */
1528static inline s64
1529ia64_pal_test_proc (u64 test_addr, u64 test_size, u64 attributes, u64 *self_test_state)
1530{
1531	struct ia64_pal_retval iprv;
1532	PAL_CALL(iprv, PAL_TEST_PROC, test_addr, test_size, attributes);
1533	if (self_test_state)
1534		*self_test_state = iprv.v0;
1535	return iprv.status;
1536}
1537
1538typedef union  pal_version_u {
1539	u64	pal_version_val;
1540	struct {
1541		u64	pv_pal_b_rev		:	8;
1542		u64	pv_pal_b_model		:	8;
1543		u64	pv_reserved1		:	8;
1544		u64	pv_pal_vendor		:	8;
1545		u64	pv_pal_a_rev		:	8;
1546		u64	pv_pal_a_model		:	8;
1547		u64	pv_reserved2		:	16;
1548	} pal_version_s;
1549} pal_version_u_t;
1550
1551
1552/*
1553 * Return PAL version information.  While the documentation states that
1554 * PAL_VERSION can be called in either physical or virtual mode, some
1555 * implementations only allow physical calls.  We don't call it very often,
1556 * so the overhead isn't worth eliminating.
1557 */
1558static inline s64
1559ia64_pal_version (pal_version_u_t *pal_min_version, pal_version_u_t *pal_cur_version)
1560{
1561	struct ia64_pal_retval iprv;
1562	PAL_CALL_PHYS(iprv, PAL_VERSION, 0, 0, 0);
1563	if (pal_min_version)
1564		pal_min_version->pal_version_val = iprv.v0;
1565
1566	if (pal_cur_version)
1567		pal_cur_version->pal_version_val = iprv.v1;
1568
1569	return iprv.status;
1570}
1571
1572typedef union pal_tc_info_u {
1573	u64			pti_val;
1574	struct {
1575	       u64		num_sets	:	8,
1576				associativity	:	8,
1577				num_entries	:	16,
1578				pf		:	1,
1579				unified		:	1,
1580				reduce_tr	:	1,
1581				reserved	:	29;
1582	} pal_tc_info_s;
1583} pal_tc_info_u_t;
1584
1585#define tc_reduce_tr		pal_tc_info_s.reduce_tr
1586#define tc_unified		pal_tc_info_s.unified
1587#define tc_pf			pal_tc_info_s.pf
1588#define tc_num_entries		pal_tc_info_s.num_entries
1589#define tc_associativity	pal_tc_info_s.associativity
1590#define tc_num_sets		pal_tc_info_s.num_sets
1591
1592
1593/* Return information about the virtual memory characteristics of the processor
1594 * implementation.
1595 */
1596static inline s64
1597ia64_pal_vm_info (u64 tc_level, u64 tc_type,  pal_tc_info_u_t *tc_info, u64 *tc_pages)
1598{
1599	struct ia64_pal_retval iprv;
1600	PAL_CALL(iprv, PAL_VM_INFO, tc_level, tc_type, 0);
1601	if (tc_info)
1602		tc_info->pti_val = iprv.v0;
1603	if (tc_pages)
1604		*tc_pages = iprv.v1;
1605	return iprv.status;
1606}
1607
1608/* Get page size information about the virtual memory characteristics of the processor
1609 * implementation.
1610 */
1611static inline s64 ia64_pal_vm_page_size(u64 *tr_pages, u64 *vw_pages)
1612{
1613	struct ia64_pal_retval iprv;
1614	PAL_CALL(iprv, PAL_VM_PAGE_SIZE, 0, 0, 0);
1615	if (tr_pages)
1616		*tr_pages = iprv.v0;
1617	if (vw_pages)
1618		*vw_pages = iprv.v1;
1619	return iprv.status;
1620}
1621
1622typedef union pal_vm_info_1_u {
1623	u64			pvi1_val;
1624	struct {
1625		u64		vw		: 1,
1626				phys_add_size	: 7,
1627				key_size	: 8,
1628				max_pkr		: 8,
1629				hash_tag_id	: 8,
1630				max_dtr_entry	: 8,
1631				max_itr_entry	: 8,
1632				max_unique_tcs	: 8,
1633				num_tc_levels	: 8;
1634	} pal_vm_info_1_s;
1635} pal_vm_info_1_u_t;
1636
1637#define PAL_MAX_PURGES		0xFFFF		/* all ones is means unlimited */
1638
1639typedef union pal_vm_info_2_u {
1640	u64			pvi2_val;
1641	struct {
1642		u64		impl_va_msb	: 8,
1643				rid_size	: 8,
1644				max_purges	: 16,
1645				reserved	: 32;
1646	} pal_vm_info_2_s;
1647} pal_vm_info_2_u_t;
1648
1649/* Get summary information about the virtual memory characteristics of the processor
1650 * implementation.
1651 */
1652static inline s64
1653ia64_pal_vm_summary (pal_vm_info_1_u_t *vm_info_1, pal_vm_info_2_u_t *vm_info_2)
1654{
1655	struct ia64_pal_retval iprv;
1656	PAL_CALL(iprv, PAL_VM_SUMMARY, 0, 0, 0);
1657	if (vm_info_1)
1658		vm_info_1->pvi1_val = iprv.v0;
1659	if (vm_info_2)
1660		vm_info_2->pvi2_val = iprv.v1;
1661	return iprv.status;
1662}
1663
1664typedef union pal_vp_info_u {
1665	u64			pvi_val;
1666	struct {
1667		u64		index:		48,	/* virtual feature set info */
1668				vmm_id:		16;	/* feature set id */
1669	} pal_vp_info_s;
1670} pal_vp_info_u_t;
1671
1672/*
1673 * Returns information about virtual processor features
1674 */
1675static inline s64
1676ia64_pal_vp_info (u64 feature_set, u64 vp_buffer, u64 *vp_info, u64 *vmm_id)
1677{
1678	struct ia64_pal_retval iprv;
1679	PAL_CALL(iprv, PAL_VP_INFO, feature_set, vp_buffer, 0);
1680	if (vp_info)
1681		*vp_info = iprv.v0;
1682	if (vmm_id)
1683		*vmm_id = iprv.v1;
1684	return iprv.status;
1685}
1686
1687typedef union pal_itr_valid_u {
1688	u64			piv_val;
1689	struct {
1690	       u64		access_rights_valid	: 1,
1691				priv_level_valid	: 1,
1692				dirty_bit_valid		: 1,
1693				mem_attr_valid		: 1,
1694				reserved		: 60;
1695	} pal_tr_valid_s;
1696} pal_tr_valid_u_t;
1697
1698/* Read a translation register */
1699static inline s64
1700ia64_pal_tr_read (u64 reg_num, u64 tr_type, u64 *tr_buffer, pal_tr_valid_u_t *tr_valid)
1701{
1702	struct ia64_pal_retval iprv;
1703	PAL_CALL_PHYS_STK(iprv, PAL_VM_TR_READ, reg_num, tr_type,(u64)ia64_tpa(tr_buffer));
1704	if (tr_valid)
1705		tr_valid->piv_val = iprv.v0;
1706	return iprv.status;
1707}
1708
1709/*
1710 * PAL_PREFETCH_VISIBILITY transaction types
1711 */
1712#define PAL_VISIBILITY_VIRTUAL		0
1713#define PAL_VISIBILITY_PHYSICAL		1
1714
1715/*
1716 * PAL_PREFETCH_VISIBILITY return codes
1717 */
1718#define PAL_VISIBILITY_OK		1
1719#define PAL_VISIBILITY_OK_REMOTE_NEEDED	0
1720#define PAL_VISIBILITY_INVAL_ARG	-2
1721#define PAL_VISIBILITY_ERROR		-3
1722
1723static inline s64
1724ia64_pal_prefetch_visibility (s64 trans_type)
1725{
1726	struct ia64_pal_retval iprv;
1727	PAL_CALL(iprv, PAL_PREFETCH_VISIBILITY, trans_type, 0, 0);
1728	return iprv.status;
1729}
1730
1731/* data structure for getting information on logical to physical mappings */
1732typedef union pal_log_overview_u {
1733	struct {
1734		u64	num_log		:16,	/* Total number of logical
1735						 * processors on this die
1736						 */
1737			tpc		:8,	/* Threads per core */
1738			reserved3	:8,	/* Reserved */
1739			cpp		:8,	/* Cores per processor */
1740			reserved2	:8,	/* Reserved */
1741			ppid		:8,	/* Physical processor ID */
1742			reserved1	:8;	/* Reserved */
1743	} overview_bits;
1744	u64 overview_data;
1745} pal_log_overview_t;
1746
1747typedef union pal_proc_n_log_info1_u{
1748	struct {
1749		u64	tid		:16,	/* Thread id */
1750			reserved2	:16,	/* Reserved */
1751			cid		:16,	/* Core id */
1752			reserved1	:16;	/* Reserved */
1753	} ppli1_bits;
1754	u64	ppli1_data;
1755} pal_proc_n_log_info1_t;
1756
1757typedef union pal_proc_n_log_info2_u {
1758	struct {
1759		u64	la		:16,	/* Logical address */
1760			reserved	:48;	/* Reserved */
1761	} ppli2_bits;
1762	u64	ppli2_data;
1763} pal_proc_n_log_info2_t;
1764
1765typedef struct pal_logical_to_physical_s
1766{
1767	pal_log_overview_t overview;
1768	pal_proc_n_log_info1_t ppli1;
1769	pal_proc_n_log_info2_t ppli2;
1770} pal_logical_to_physical_t;
1771
1772#define overview_num_log	overview.overview_bits.num_log
1773#define overview_tpc		overview.overview_bits.tpc
1774#define overview_cpp		overview.overview_bits.cpp
1775#define overview_ppid		overview.overview_bits.ppid
1776#define log1_tid		ppli1.ppli1_bits.tid
1777#define log1_cid		ppli1.ppli1_bits.cid
1778#define log2_la			ppli2.ppli2_bits.la
1779
1780/* Get information on logical to physical processor mappings. */
1781static inline s64
1782ia64_pal_logical_to_phys(u64 proc_number, pal_logical_to_physical_t *mapping)
1783{
1784	struct ia64_pal_retval iprv;
1785
1786	PAL_CALL(iprv, PAL_LOGICAL_TO_PHYSICAL, proc_number, 0, 0);
1787
1788	if (iprv.status == PAL_STATUS_SUCCESS)
1789	{
1790		mapping->overview.overview_data = iprv.v0;
1791		mapping->ppli1.ppli1_data = iprv.v1;
1792		mapping->ppli2.ppli2_data = iprv.v2;
1793	}
1794
1795	return iprv.status;
1796}
1797
1798typedef struct pal_cache_shared_info_s
1799{
1800	u64 num_shared;
1801	pal_proc_n_log_info1_t ppli1;
1802	pal_proc_n_log_info2_t ppli2;
1803} pal_cache_shared_info_t;
1804
1805/* Get information on logical to physical processor mappings. */
1806static inline s64
1807ia64_pal_cache_shared_info(u64 level,
1808		u64 type,
1809		u64 proc_number,
1810		pal_cache_shared_info_t *info)
1811{
1812	struct ia64_pal_retval iprv;
1813
1814	PAL_CALL(iprv, PAL_CACHE_SHARED_INFO, level, type, proc_number);
1815
1816	if (iprv.status == PAL_STATUS_SUCCESS) {
1817		info->num_shared = iprv.v0;
1818		info->ppli1.ppli1_data = iprv.v1;
1819		info->ppli2.ppli2_data = iprv.v2;
1820	}
1821
1822	return iprv.status;
1823}
1824#endif /* __ASSEMBLY__ */
1825
1826#endif /* _ASM_IA64_PAL_H */